Improve the Conductivity of CuBTC by in‐situ Reduction to Core‐Shell CuTCNQ@CuBTC

Abstract

In recent years, metal‐organic frameworks (MOFs) have been widely used in the fields of hydrogen storage, gas separation, catalysts, and so on. It is inspiring to apply MOFs in the field of electrochemistry, whereas the intrinsic low electric conductivity of MOFs limits their promising future. Herein, a new approach to improve the electronic conductivity of Cu‐MOF (CuBTC) is developed, by adopting LiTCNQ solution as the reductant to generate CuTCNQ@CuBTC (BTC=1,3,5‐benzenetricarboxylic acid; TCNQ=7,7,8,8‐tetracyanoquinodimethane) core‐shell nanoparticles with conductive CuTCNQ as the shell and non‐conductive CuBTC as the core, and the reaction conditions are optimized. Mutually validated data indicate that conductive CuTCNQ shell grows thicker with a higher temperature (60 °C) and prolonged time (24 h). With this method, the conductivity of the CuBTC material is effectively improved from 3.84×10−9 to 2.94×10−7 S cm−1.

Synergistic Effect of Fe and Zn Doping on Multimetallic Catalysts for the Catalytic Hydrogenation of Furfural to Furfuryl Alcohol

“…To analyze the pore characteristics of the prepared catalysts, nitrogen adsorption‐desorption tests of the M@NPC‐600 material were carried out, and the results are shown in Figure 1c. The isotherms of all the prepared materials show type IV isotherms, and a hysteresis loop appears between P/P 0 =0.5–1.0, indicating that there are micropores and mesoporous structures in the materials [28–30] . However, the doping of Zn changes the structure of the material.…”

“…The isotherms of all the prepared materials show type IV isotherms, and a hysteresis loop appears between P/ P 0 = 0.5-1.0, indicating that there are micropores and mesoporous structures in the materials. [28][29][30] However, the doping of Zn changes the structure of the material. Compared with the 3.31 nm of FeCo@NPC-600, the average pore size of Fe-CoZn@NPC-600 and CoZn@NPC-600 with Zn component increased to 4.96 nm and 5.05 nm (Table S1), respectively, and the larger mesoporous structure also increased significantly (Figure 1c, inset).…”